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[Pervasive developmental disorders: neurological perspectives]

R F Tuchman1

  • 1Departamento de Neurología, Miami Children's Hospital, Florida 33155, USA.

Revista De Neurologia
|November 1, 1996
PubMed
Summary
This summary is machine-generated.

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This study analyzed neurological and neurodiagnostic findings in 421 children with pervasive developmental disorders (PDD). Many children exhibited motor disorders, stereotyped behaviors, and language regression, highlighting the complex neurological underpinnings of PDD.

Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Genetics

Context:

  • The pervasive developmental disorders (PDD) or autism spectrum disorders (ASD) encompass behavioral conditions affecting social interaction, communication, and behavior.
  • These disorders present with diverse etiologies and varying clinical severity.

Purpose:

  • To analyze the incidence of specific neurological changes and neurodiagnostic test results in a cohort of 421 children diagnosed with PDD.

Summary:

  • 11% of children had genetic disorders (chromosomal, syndromes, family history).
  • 18% presented with motor disorders, primarily hypotonicity (85%).
  • 71% exhibited stereotyped behaviors, 28% showed language regression, and 13% experienced epileptic crises.
  • Neurodiagnostic tests revealed abnormalities: EEG in 29% and MRI in 19% of tested children.

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Impact:

  • Findings underscore the significant neurological heterogeneity within PDD diagnoses.
  • Highlights the importance of comprehensive neurodiagnostic evaluations for children with PDD.
  • Provides data on the prevalence of specific neurological and genetic factors in this population.